Try the GMC website where you should be able to select color and watch it change on screen.
Problem I find with those colors is that they are not realistic. They don't look like the color on the truck in "real life".
Note: Just checked GMC's website and they don't even have the color images available right now anyways when you try to Build Your Own Acadia.
Having said that, I doubt there's anyone who's taken a physical photo of each color 2010 Acadia and uploaded it to a website anywhere.